Molybdenum TZM

UNS R03630 special
Validate composition

Ti-Zr carbide-strengthened molybdenum alloy with higher recrystallisation temperature and better creep resistance than pure Mo. Used in hot-press dies and rocket nozzles.

Applicable Standards

  • ASTM B387
  • UNS R03630

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Mo 99.1 100.0 ~99.55
Ti 0.4 0.55 ~0.48
Zr 0.06 0.12 ~0.09
C 0.01 0.04 ~0.03
Mo 99.1–100.0% Ti 0.4–0.55% Zr 0.06–0.12% C 0.01–0.04%

Typical Applications

  • Hot-press dies
  • Rocket nozzles
  • X-ray anodes
  • High-temp fixtures
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